Loud and Clear yet comfortably light The OPPO PM-2 Planar Magnetic headphones are characterized by a distillation of the OPPO PM-1’s key acoustic and industrial design features into a more affordable price point. Similar to the OPPO PM-1, the PM-2 is characterized by its natural, dynamic, and engaging sound quality with an emphasis on comfort and reduced weight. The PM-2 uses the same driver as the PM-1, and the same technological breakthroughs are present in the PM-2: the use of a unique 7-layer diaphragm, double-sided spiraling coils, and an FEM-optimised magnet system. Planar Magnetic Technology The OPPO PM-2 utilizes a planar magnetic driver that sets it apart from the majority of headphones on the market. Sound is generated by a very thin and light diaphragm whose entire surface area is evenly driven. The diaphragm is driven in a symmetric pull-push manner, and the magnetic system and conductor patterns have been optimised for maximum sensitivity and consistency. This allows the diaphragm to generate very stable and linear piston-like vibrations, ensuring phase coherence and high resolution performance with minimal distortion. Unique to OPPO planar magnetic headphones is the use of a double-sided diaphragm, which allows us to place twice as many conductors within the magnetic field and eliminate any passive return zones where the conductors do not work. This results in the use of 100% of our conductor length, which in turn results in greater efficiency. In addition, our flat conductor pattern eliminates inductance-related intermodulation distortion, common with dynamic headphones, and the OPPO PM-2’s purely resistive impedance means that sound quality is unaffected by a headphone amplifier’s output impedance. The OPPO PM-2 combines high sensitivity with low weight, allowing it to be used freely with portable devices without requiring additional amplification. Its circumaural, open back design provides the best in sound quality and comfort, and the overall rugged construction ensures that the headphones can withstand mechanical and environmental stress. These aspects of the OPPO PM-2’s design combine to provide a transparent, highly dynamic sound that exhibits well-balanced tonal qualities with very little distortion, resulting in a listening experience that is both free of fatigue and capable of communicating every nuance of your favourite music.
Headphone Specifications Acoustic Principle Open back Ear Coupling Circumaural Nominal Impedance 32 Ohm Sensitivity 102 dB in 1 mW Clamping Pressure 5 N Cables 3 m detachable OFC cable (6.35 mm) 1 m detachable OFC cable (3.5 mm) Cable Connectors Output: 2.5 mm mono mini jacks Input: 6.35 mm stereo jack, 3.5 mm stereo jack Weight 385 g (without cable) Included Accessories Carrying Case 6.35 mm and 3.5 mm cables User Manual Driver Specifications Driver Type Planar Magnetic Driver Size (Oval) 85 x 69 mm Magnet System Symmetric push-pull neodymium Frequency Response In Free-Field 10 - 50,000 Hz Long-Term Max Input Power 500 mW according to IEC 60268-7 Pulse Max Input Power 2 W